ENVIRONMENTAL HEALTH REQUIREMENTS

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ENVIRONMENTAL HEALTH REQUIREMENTS Common
Issues and Errors Presented byMr Anselm
Gonsalves, SE (Non-Industrial)CBPU, PCD
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Scope of Presentation

• Refuse chute terminating in private roof
  terrace/garden
• Refuse hopper design
• Bin centre
• Public toilet
• Food shop
• Swimming pool

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Refuse Chute in Private Roof Terrace/Garden
refuse chute

• Common Error
• Siting of refuse
• chutes within private
• roof terrace/garden
• Owners using the roof
• terraces complained
• about odour and
• safety problems

roof terrace

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Refuse Chute in Private Roof Terrace/Garden

• Clarification
• Refuse chute is ventilated at roof level to allow
  foul air to be dispersed safely into the
  atmosphere without posing nuisance to surrounding
  developments
• Ventilation of chute will also prevent foul air
  entering the apartment units when the refuse
  hopper is opened
• for disposal of rubbish
• QPs have to pay close attention to the use of the
  surrounding roof space and maintenance
  requirements of the refuse chute when deciding on
  its location

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Refuse Chute in Private Roof Terrace/Garden

• Suggested Guideline
• Terminate the refuse chute at the highest roof
  level(for building with staggered roofs),
  wherever feasible.
• Locate refuse chute within common service areas (
  to facilitate access for sprinkler system
  maintenance ) with ventilation openings facing
  away from roof terraces/gardens.
• Where it is technically not feasible to re-site
  the refuse chute outside private roof
  terrace/garden, it shall be raised and screened
  so as not to pose odour or safety problems

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Refuse Hopper Design

• Common Issue
• Minimum height of the hopper
• Hopper sited above kitchen counter

Clarification QP free to decide on the hopper
height and location, taking into consideration
safety and hygiene
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Bin Centre Refuse Output

• Clarification
• Where the total refuse output is less than 1,000
  litres/day, an existing bin centre may be
  demolished under the A A works
• Approval shall be obtained from EHD prior to the
  demolition work/ submission of BP.

Common Issue For a development undergoing A/A
work, can the existing bin centre be demolished
if total refuse output is less than 1000
litres/day
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Bin Centre Refuse Output

• Common Issue
• Where the total
• refuse output is more
• than 4000 litres/day,
• can two or more
• smaller bin centres
• be provided in lieu of a
• single bin centre fitted
• with a compactor

• Clarification
• Centralising refuse storage at a single bin
  centre with compactor is meant to facilitate
  refuse collection and mechanisation.
• In general, multiple bin centres will not be
  supported
• For large-scale developments requiring multiple
  bin centres, QP shall consult CBPU for approval
  before BP submission.

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Bin Centre Location Facing

• Common Error
• Bin centre facing frontage of landed houses
• Odour and noise nuisance caused to neighbouring
  premises

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Bin Centre Location Facing

• Clarification
• Siting of bin centre and its facing shall
• take into consideration the surrounding
• land use
• This is to ensure the bin centre does
• not pose odour and noise problems to
• neighbouring developments

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Public Toilet Development Type
Common Issue QPs not sure what type of
developments require provision of public toilet

• Clarification
• Developments requiring public toilets are
  specified at Appendix 2 of COPEH
• Public toilets also required in MRT station and
  airport( not in Appendix 2)
• All other developments not required to provide
  public toilets
• QP free to decide the number of water closet,
  wash basin and urinal for developments in
  consultation with developer/owner

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Public Toilet Auto Sensor

• Clarification
• Only water closets and urinals in public toilets
  shall be fitted with an automatic flushing device
• PUB does not allow automatic flushing devices in
  non-public toilets in order to conserve water

Common Issue Automatic flushing devices for
non-public toilets
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Public Toilet Manual Over-ride /Bypass

• New requirements for auto-sensor operated flush
  valves
• Spelt out in EHD circular dated 24 Dec 03
• Urinal fitted with manual over-ride feature
• Water closet fitted with manual over-ride and
  bypass
• feature
• Rationale
• To allow urinal/water-closet to be flushed should
  the sensor mechanism fail to operate

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Public Toilet Manual Over-ride/Bypass

• Implementation From 1 Jul 2003
• All building plan submissions for new
  developments with public toilets
• Existing public toilets undergoing renovations,
  repairs or other works involving replacement of
  flush valves or flushing cisterns

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Public Toilet Manual Over-ride/Bypass

• Implementation From 1 Jul 2004
• All new projects
• Ongoing projects which have not obtained TOP by 1
  Jul 2004.
• In the event of delay for ongoing projects, QP
  may apply for waiver to EHD. Waiver will be
  granted on a case by case basis, subject to
  developer/QP substantiating the delay.

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Foodshop Wash Area
Common Error Centralised wash area not provided
for foodshop with individual stalls

• Clarification
• Centralised wash area is
• required for washing
• of soiled crockery
• Objective is to mechanise
• washing operation so as to
• improve standard of
• hygiene

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Foodshop Wash Area

• Clarification
• Centralised kitchen is allowed
• only for a single foodshop without
• individual foodstalls eg. restaurant.
• For foodshops with two or more
• stalls, every foodstall shall have its
• own individual kitchen with a
• minimum area of 5 sq m.

• Common Error
• One centralised
• kitchen to serve
• two or more
• foodstalls

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Foodshop Grease Trap/IC

• Errors
• Grease trap/inspection chamber(IC) located inside
  kitchen
• Sanitary plumbing system/toilet sited over
  kitchen of a foodshop

• Clarification
• Not allowed as they will affect the standard of
  food hygiene and pose risks to public health(ie.
  food posisoning).
• Strictly prohibited for new developments
• For AA to existing buildings, the grease trap/IC
  shall be segregated with a low wall.
  Containment facilities such as double floor slab,
  drip tray should be provided for overhead
  sanitary pipes

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Foodshop Grease Trap/IC
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Foodshop Flue Exhaust Stack

• Common Error
• Flue exhaust stack of
• foodshop is not
• terminated above roof
• level and facing
• adjacent premises
• Smoke, heat and
• odour nuisance caused.

• Clarification
• Flue exhaust shall be
• terminated above roof level
• and the outlet shall be
• directed away from
• neighbouring premises
• If flue exhaust cannot be
• discharged at roof level,
• air cleaning system shall
• be provided.

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Flue Exhaust Stack Good Design
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Swimming Pool Sanitary Facilities

• Clarification
• Swimming pool in condominium/apartment is not
  classified as public pool
• QP free to decide on the sanitary facilities in
  consultation with developer (for new
  developments)/MCST (for existing developments)

• Common issue
• Changing room sanitary facilities
• Reduction/deletion of sanitary facilities in
  changing room of existing condominium or
  apartments

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End of Lecture